is there any way I could hit 200bhp in my mk2 supra without changing the engine or adding a turbo to it? And something that would be safe and not too pricey.
All true and I hope to experience it for myself one day But his question was how to make the power with out swapping engines.williamb82 said:well, with the right mods on a 7mgte at 10psi it will be ~230-250rwhp and the stock headgasket will hold it if retourqed to 75lbs/ft. also, if you have the machine work done right and use a mhg and arp studs tqed properly it will hold whatever you want. the mhg on my 7m has be reused about 5 times and still no problems. if it can be reused that many times then the first time its clamped down should never have problems. there are lots of 500+rwhp mkiii's running mhg's with no problems at all. if a mhg blows it was because the block or head wasnt machined properly, or it wasnt put together and tqed properly.
Ok I don't want to sound like a 7M hater but it is not the best of the M Series, not by a long shot a 5M or 6M is much closer to that statement here is why (My opinon based on alot of experiance and observation)THe best way to gain consistantly high levels of HP for the Mk2 is to swap in a 7MGTE. If you find a somewhat solid engine you can drop it right in and have the whole project done for about $2000-$3000. From what I know the 7M is an extreamly well built motor, it truely is the best of the M series.